Classification Question Preview (ID: 24897)
Classification.
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One goal of scientists is to assign every organism a universally accepted name according to the system known as
a) traditional classification.
b) the three domains.
c) binomial nomenclature.
d) cladistics
At any level of organization, groups that have biological meaning are referred to as
a) cladograms
b) binomials.
c) taxa.
d) systems.
According to the rules of binomial nomenclature, which of the terms is capitalized?
a) the genus name only
b) the species name only
c) both the genus and species names
d) neither the genus nor species names
Based on their names, you know that the baboons Papio annubis and Papio cynocephalus do NOT belong to the same
a) class
b) family
c) genus
d) species
Systematics is
a) a system of classification created by Carolus Linnaeus.
b) the science of naming and grouping organisms.
c) a way to give a two-part scientific name to all organisms.
d) a list of characteristics that can be used to identify an organism.
Several different classes make up a
a) kingdom
b) phylum
c) family
d) Genus
Animals that are warm-blooded, have body hair, and produce milk for their young are grouped in the class
a) Amphibia
b) Mammalia
c) Aves
d) Reptilia
Traditional classifications tended to take into account primarily
a) extinct organisms.
b) RNA similarities.
c) DNA similarities.
d) visible similarities and differences.
The grouping of organisms based on their common descent is called
a) traditional classification.
b) binomial nomenclature.
c) derived characters.
d) evolutionary classification.
In an evolutionary classification scheme, species within one genus should
a) be more closely related to one another than they are to species in other genera.
b) be less closely related to one another than they are to species in other genera.
c) be limited to species that can interbreed.
d) have identical genes.
In biology, a trait that arose in an ancestor and is passed along to its descendants is referred to as a
a) derived character.
b) taxonomic group.
c) molecular clock.
d) physical similarity.
Which of the following is a correct explanation of a derived character?
a) The presence of a backbone is a derived character of mammals because all mammals have a backbone.
b) The presence of four limbs is a derived character of snakes because the ancestors of modern snakes had limbs, even though mod
c) The presence of hair is a derived character of mammals because all mammals have hair and no animals other than mammals have i
d) Retractable claws are a derived character of carnivores because some of the animals that are carnivores have retractable claw
Each node on a cladogram represents
a) the last point at which two groups shared a common ancestor.
b) the point at which one or more species became extinct.
c) the most recent point at which a trait was lost in a certain clade.
d) the point at which two clades joined and became monophyletic.
What do all organisms have in common?
a) They all use DNA to pass on information.
b) They are all prokaryotes.
c) They are all eukaryotes.
d) They are all genetically identical.
What cell structures in eukaryotic cells contain DNA that can be used to determine evolutionary relationships?
a) nuclei and cytoplasm
b) nuclei and vacuoles
c) nuclei and mitochondria
d) nuclei and microfilaments
Which kingdoms have photosynthetic organisms?
a) fungi and plants
b) fungi and protists
c) protists and plants
d) plants and animals
Which of the following characteristics is found only in organisms classified in the kingdom fungi?
a) single cells without a nucleus
b) multicellular with chloroplasts
c) multicellular filaments that absorb nutrients
d) colonies of single, photosynthetic cells that reproduce asexually
The domain that contains unicellular organisms that live in extreme environments is
a) Eubacteria
b) Eukarya.
c) Archaea
d) Bacteria.
The two domains composed of only unicellular organisms are
a) Eubacteria and Archaea.
b) Eukarya and Bacteria.
c) Archaea and Bacteria.
d) Archaea and Eukarya.
What is thought to be true about the three domains of living things?
a) They diverged from a common ancestor fairly recently.
b) They diverged from a common ancestor before the evolution of the main groups of eukaryotes.
c) They did not have a common ancestor.
d) Domains Bacteria and Archaea evolved after the main groups of eukaryotes.
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